Where in the world: Geo data in PHP

Googlemaps, Multimap, Ordnance Survey...if you simply want to embed a map, there are plenty of APIs out there. But what if you want to build the next mapping application?|This intro explains the basics of Geographical Information Systems, how GIS data can be represented in PHP, and the libraries for manipulating and analysing GIS datasets.

Was hoping for a bit more detail here, quite a bit of the basic stuff. e.g. The visualisation of the mining data was really interesting. Unfortunate colour scheme meant the code examples were invisible and that broke the flow a bit. That said, he's enthusiastic about his topic and held the the audience's interest.

Really interesting talk on the various aspects of dealing with GEO data. I've never done much with GEO-data before so I learned a lot today. The code samples were way too dark and fixing them indeed broke the flow. Nevertheless it's very clear that Marcus knows a lot about the subject, and he's able to explain the things he wants to tell in a very clear way.